2XU Men's Compression Performance Run Socks 100% Other Fibers Compression support to calf, Shin, ankle, Achilles and foot | graduated compression for improved warm up and recovery post exercise Zoned breathability zones to Shin and top of foot | seamless construction throughout for greater comfort Anatomical left and right sock | zoned foot bed with light padding positioned to support the foot in motion Lightweight yet powerful PWX fabrics | durable yarns that outlasts the competition| multi-directional stretch | moisture wicking yarns to help keep you dry Warranty + care - 12 month Warranty with proof of purchase from an authorized 2XU seller. Machine wash in cold water and hang to dry Powerful yet super lightweight Lightweight zoned breathability panel - increased airflow and moisture management Muscle containment for reduced vibrations & oscillation, less muscle fatigue & damage Medical circular 360 degree knit construction creates a consistent yet powerful pressure